First Mutual Savings
| Status: | Inactive as of 12/31/1977 |
| Merger - Assisted | |
| Successor Bank: | United Savings of Central Illinois |
| Headquarters: | First Mutual Savings 700 Main St Peoria, IL 61602 |
| Established: | 01/01/1899 |
| FDIC Insurance: | 01/06/1943 |
| FDIC Cert: | #27830 |
| Charter Class: |
History
| 1899-01-01 | Institution established: Original name:First Mutual Savings | |
| 1974-12-31 | Acquired Havana Savings and Loan Association (29680) in HAVANA, IL | |
| 1977-12-31 | Failed. Acquired with government financial assistance and subsequently operated as part of United Savings of Central Illinois (29103) | |
| 1982-06-30 | Merged into and subsequently operated as part of United Federal Savings and Loan Association of Illinois (30009) in GALESBURG, IL | |
| 1983-11-30 | Acquired Peoples Federal Savings and Loan Association (28128) in CHILLICOTHE, IL | |
| 1988-05-31 | Changed organization type to MUTUAL SAVINGS BANK | |
| 1988-05-31 | Changed name to United Federal Savings Bank (30009) | |
| 1990-10-30 | Changed name to Westinghouse Federal Bank, A Federal Savings Bank (30009) | |
| 1990-10-30 | Changed organization type to STOCK SAVINGS BANK | |
| 1990-12-27 | Acquired Enterprise Savings Bank, FA (29415) in CHICAGO, IL | |
| 1993-01-01 | Merged into and subsequently operated as part of First Financial Bank, FSB (28939) in STEVENS POINT, WI | |
| 1994-02-27 | Acquired North Land Bank of Wisconsin, SSB (28603) in ASHLAND, WI | |
| 1994-10-01 | Acquired First Financial-Port Savings Bank, FSB (30537) in PORT WASHINGTON, WI | |
| 1995-02-28 | Acquired First Federal Savings Bank, F.S.B. (29321) in ROCKFORD, IL | |
| 1995-02-28 | Change trust powers from TRUST POWERS NOT GRANTED to FULL TRUST POWERS GRANTED | |
| 1996-01-01 | Changed name to First Financial Bank (28939) | |
| 1998-11-12 | Merged into and subsequently operated as part of Associated Bank Milwaukee (1509) in MILWAUKEE, WI | |
| 2001-04-20 | Changed name to Associated Bank, National Association (5296) | |
| 2001-04-20 | Acquired Associated Bank, National Association (5311) in NEENAH, WI | |
| 2001-04-20 | Merged into and subsequently operated as part of Associated Bank, National Association (5296) in GREEN BAY, WI | |
| 2001-05-25 | Acquired Associated Bank North (12340) in WAUSAU, WI | |
| 2001-05-25 | Acquired Associated Bank South Central (13237) in MADISON, WI | |
| 2001-05-25 | Acquired Associated Bank Lakeshore, National Association (11619) in MANITOWOC, WI | |
| 2003-09-12 | Acquired Associated Card Services Bank, National Association (34208) in STEVENS POINT, WI | |
| 2003-11-21 | Acquired Associated Bank Illinois, National Association (34916) in ROCKFORD, IL | |
| 2005-02-19 | Acquired First Federal Capital Bank (28981) in LA CROSSE, WI | |
| 2005-07-15 | Acquired Associated Bank Minnesota, National Association (18704) in MINNEAPOLIS, MN | |
| 2005-07-15 | Acquired Associated Bank Chicago (22177) in CHICAGO, IL | |
| 2005-10-21 | Reorganized. | |
| 2005-11-04 | Acquired State Financial Bank, National Association (3753) in HALES CORNERS, WI | |
| 2007-06-29 | Acquired The First National Bank of Hudson (5348) in WOODBURY, MN | |
| 2018-06-24 | Acquired Bank Mutual (30125) in BROWN DEER, WI | |
| 2020-02-14 | Acquired The First National Bank in Staunton (14924) in STAUNTON, IL |